Ok, that is one post from a reefer that doesn't have many posts (experience), even if the pellets have GFO bound into them the redfield ratio is still important. Also the amount of feeding and bioload, in terms of fish is important, we can't expect miracles here.
The evidence against the product is anecdotal, but I, personally have found that it works.

I particular like this quote from one of the representatives of the pellets:

some other points.

we have tested the biopellets for more then 18 months now, on different tanks, with succes. but what is succes? for us the standard is that nitrates should not exceed 1 ppm and phosphates not higher then 0.03 ppm. although for most tanks the phosphates levels were usually not higher then 0.01 ppm. measured in the morning, because levels of phosphate in the afternoon were usually a bit higher because of heavy feeding.

we also tested the biopellets in combination with GFO and observed that the GFO would last much longer, however, the GFO must be placed after the biopellets. In addition, this particular tank was not able to reduce its nitrate content efficiently with the old biopellets (nitrates between 10-20 and now 1 ppm).

Another observation we did was that with a high animal stock there would be so much bacteria produced that the average skimmer could not remove all of the bacterial slime. therefore, filter pads are highly recommended. this will also remove any particulate matter coming from the biopellets.

In one tank we observed a slight increase in red algae or most likely cyano, but the strange thing was that the other tanks, running on the same filtering system, did not show this. however, this disappeared after a few weeks.

Of Note, these pellets require a high flow through to ensure oxygen rich growth allowing a better absorption of N and P. Under low oxygen levels there will be denitrification independent of phosphates by producing N2 gas.

Hopefully this will answer some of the urgend questions that people have.